Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With coupling means
Patent
1985-04-08
1987-06-23
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With coupling means
324119, 324127, 361 95, G01R 120, G01R 1922, H02H 3093
Patent
active
046755985
ABSTRACT:
The invention consists in using current transformers incorporated in the electronic relays of a switchboard protective device and in connecting thereto current measurement indicators located on the front face of the switchboard.
REFERENCES:
patent: 2341706 (1944-02-01), Fields
Elektrotechnik, vol. 61, No. 3, Feb. 1979, pp. 14-16, 18, 27.
Gerin Merlin
Karlsen Ernest F.
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